Using receipts to verify product purchases (HTML)

Each Windows Store transaction that results in a successful product purchase can optionally return a transaction receipt. This receipts provides information about the listed product and monetary cost to the customer.

Having access to this information supports scenarios where your app needs to verify that a user purchased your app, or has made in-app product purchases from the Windows Store. For example, imagine a game that offers downloaded content. If the user who purchased the game content wants to play it on a different device, you need to verify that the user already owns the content. Here's how.